This doesn't just apply to R170, it applies to all MB Part Numbers 
The "usual" P/N's we normally see ....
The first three digits (170 410 06 02) are the chassis the part was first used on i.e. (SLK R) 170. This number can also be the engine model number, i.e. (M) 112 as well as other numbers.
The second set of three digits (170 410 06 02) refers to which Group the part belongs to (ie. drivetrain, engine, brakes, suspension, etc...). 410 refers to drivetrain. This number is also used in the Factory Service Manual, group 41 section with all the Drivetrain service info.
The first set of two digits (170 410 06 02) refers to which version of the part it is. Meaning there could be several versions or runs of one part each with a slight difference or modification, or it could just have been made at a different plant We have the 06 version / plant.
The last two numbers (170 410 06 02) are the parts number in the master listing. In the number above we have the 02 (second) part in the drivetrain Group.
The abnormal P/N's we sometimes see ....
Part suffix numbers are used to denote either the disposition of a component or it's trim code for items that are trim / body related.
-70 indicates the item has core credit associated to it
-80/-88 indicates the item is re-manufactured / refurbished
-8J77 indicates a trim or option package code. these numbers are almost always 4 digits.
000 / 900 Type numbers are components that have not been designed for a specific model and may see broad use across a few or all models. The 900 series are components that have been assigned a Mercedes Benz Part Number by Mercedes Benz USA and refer to almost exclusively to components sourced by MB USA as opposed to MB Worldwide.
Repair kits from Mercedes Benz are identified typically by group number 586 for older vehicles with newer vehicles using their standard group number.
Mercedes Benz Special Tools use a 12 digit part numbering system consisting of the Type Number, Group 589, Consecutive Number, Special Tool Type and Completeness Number. The Special Tool Type would refer to the tool being an extractor etc. The Consecutive Number refers to total number of kits thus issued or a series component of any said kit. The Completeness Number would refer to the kit either being a complete kit -00 or a component of a kit -05. Examples of this are such things as the master security wheel nut kit or the specific wheel nut keys within.
Mercedes Benz Hardware, bolts / washers etc also use a 12 digit numbering system to designate either a DIN or NORM component, broken into two groups of 6 digits.
For DIN hardware the first digit, 0, identifies the component as a piece of DIN specific hardware. The second through sixth digits refer to the specific DIN classification. Seventh through ninth digits call out the basic dimensions and tenth through twelfth call out specific information such as length or coatings etc. An example number would look like 000933-005007 which is refers to DIN standard 933 (M1.9-M52 hex head full thread bolts) and a basic dimension of 5mm. For NORM hardware the first digit is 9. The NORM classification indicated that the hardware has been manufactured specifically to meet industry specific standards that may be greater or more restrictive than basic DIN hardware.
The "usual" P/N's we normally see ....
The first three digits (170 410 06 02) are the chassis the part was first used on i.e. (SLK R) 170. This number can also be the engine model number, i.e. (M) 112 as well as other numbers.
The second set of three digits (170 410 06 02) refers to which Group the part belongs to (ie. drivetrain, engine, brakes, suspension, etc...). 410 refers to drivetrain. This number is also used in the Factory Service Manual, group 41 section with all the Drivetrain service info.
The first set of two digits (170 410 06 02) refers to which version of the part it is. Meaning there could be several versions or runs of one part each with a slight difference or modification, or it could just have been made at a different plant We have the 06 version / plant.
The last two numbers (170 410 06 02) are the parts number in the master listing. In the number above we have the 02 (second) part in the drivetrain Group.
The abnormal P/N's we sometimes see ....
Part suffix numbers are used to denote either the disposition of a component or it's trim code for items that are trim / body related.
-70 indicates the item has core credit associated to it
-80/-88 indicates the item is re-manufactured / refurbished
-8J77 indicates a trim or option package code. these numbers are almost always 4 digits.
000 / 900 Type numbers are components that have not been designed for a specific model and may see broad use across a few or all models. The 900 series are components that have been assigned a Mercedes Benz Part Number by Mercedes Benz USA and refer to almost exclusively to components sourced by MB USA as opposed to MB Worldwide.
Repair kits from Mercedes Benz are identified typically by group number 586 for older vehicles with newer vehicles using their standard group number.
Mercedes Benz Special Tools use a 12 digit part numbering system consisting of the Type Number, Group 589, Consecutive Number, Special Tool Type and Completeness Number. The Special Tool Type would refer to the tool being an extractor etc. The Consecutive Number refers to total number of kits thus issued or a series component of any said kit. The Completeness Number would refer to the kit either being a complete kit -00 or a component of a kit -05. Examples of this are such things as the master security wheel nut kit or the specific wheel nut keys within.
Mercedes Benz Hardware, bolts / washers etc also use a 12 digit numbering system to designate either a DIN or NORM component, broken into two groups of 6 digits.
For DIN hardware the first digit, 0, identifies the component as a piece of DIN specific hardware. The second through sixth digits refer to the specific DIN classification. Seventh through ninth digits call out the basic dimensions and tenth through twelfth call out specific information such as length or coatings etc. An example number would look like 000933-005007 which is refers to DIN standard 933 (M1.9-M52 hex head full thread bolts) and a basic dimension of 5mm. For NORM hardware the first digit is 9. The NORM classification indicated that the hardware has been manufactured specifically to meet industry specific standards that may be greater or more restrictive than basic DIN hardware.
